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Management for fleecing images is implemented here. If the fleecing option is set, for each disk (except EFI disk and TPM state) a new fleecing image is allocated on the configured fleecing storage (same storage as original disk by default). The disk is attached to QEMU with the 'size' parameter, because the block node in QEMU has to be the exact same size and the newly allocated image might be bigger if the storage has a coarser allocation or rounded up. After backup, the disks are detached and removed from the storage. If the storage supports qcow2, use that as the fleecing image format. This allows saving some space even on storages that do not properly support discard, like, for example, older versions of NFS. Since there can be multiple volumes with the same volume name on different storages, the fleecing image's name cannot be just based on the original volume's name. The schema vm-ID-fleece-N(.FORMAT) with N incrementing for each disk is used. Partially inspired by the existing handling of the TPM state image during backup. Signed-off-by: Fiona Ebner <f.ebner@proxmox.com> |
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| .. | ||
| API2 | ||
| CLI | ||
| QemuServer | ||
| VZDump | ||
| Makefile | ||
| QemuConfig.pm | ||
| QemuMigrate.pm | ||
| QemuServer.pm | ||
| QMPClient.pm | ||